5-(4-Ethoxyphenyl)-5-oxovaleric acid

7-(2,4-Dimethoxyphenyl)-7-oxoheptanoic acid

5-(2,5-Dimethoxyphenyl)-5-oxovaleric acid

8-[4-(N,N-Dimethylamino)phenyl]-8-oxooctanoic acid

6-[4-(N,N-Dimethylamino)phenyl]-6-oxohexanoic acid

6-(2-Chloro-4-fluorophenyl)-6-oxohexanoic acid

6-(4-Chloro-2-methoxyphenyl)-6-oxohexanoic acid

4-[2-Chloro-4-(methylthio)phenyl]-4-oxobutyric acid

6-(3,4,5-trichlorophenyl)-6-oxohexanoic acid

4-(2,4,5-trimethoxyphenyl)-4-oxobutyric acid

7-(2,3,4-trimethoxyphenyl)-7-oxoheptanoic acid